Pipe-coupling.



t i l litre Parent OFFICE.

MAX NLAURAN, OF NIAGARA FALLS, NEI/V YORK, ASSIGNOR, BY IWIESNEASSIGNMENTS, TO CASTNER ELECTROLYTIC ALKALI COMPANY, OF

VIRGINIA.

PIPE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 674,928, dated May 28,1901- Application filed March 22, 1900. Serial No. 9,681. (No model.)

To (tZZ 2071,0177, 71! 727mg concern.-

Be it known that I, MAX MAURAN,engineer, a citizen of the United States,with residence and post-oilice address at Niagara Falls, in thecountyofNiagara and State of New York, have invented certain new anduseful Improvements in Pipe-Couplings, of which the following is aspecification accompanied by drawings.

The invention is particularly adapted for coupling non-corrosive pipesfor acids and alkalies. Great difficulty is found in producing acoupling which may be reliably tight and at the same time readilycoupled and uncoupled.

The object of the present invention is to accomplish this result in asimple and economical manner.

The invention will be readily understood from a description of theaccompanying drawings, wherein- Figure 1 is a view, half in section, ofa pipe and pipe-coupling constructed under my invention. Fig. 2 is aface view of one of the double members. Fig. 3 is an edge view of thesame, showing the member slightly separated; and Fig. 4: is a viewsimilar to Fig. 2 with the four parts of the member slightly displaced,so as to show their relation. Fig. 5 is a modification.

Throughout the figures like reference-letters refer to like parts.

The abutting ends of two pipes b, of vulcanite or other suitablenon-corrosive material, are brought together, as in.Fig. l, and areconstructed with the flaring or conical ends, as shown at 0. Between theabutting ends of the pipes I place a ring of suitable packing cl, and Ithen apply my coupling-irons, which effect the drawing together of theabutting ends of the pipe and the consequent compression of the packingd between them until there is no chance for leakage and a very firmjoint is obtained. The coupling-irons consist of two members, one foreach pipe end, and each member consists of four semicircular pieces ffand g g, provided with registering bolt'holes h. The piecesfftogetherform a ring broken at two points and internally tapered or flared, so asto fit the surface 0 of each pipe I). The parts g are of the sameexternal radius as the partsfand internally are fitted to conform to theportion of the pipe Z) or the smaller portions of the surface 0immediately behind the partsf. Fourof the halfrings ffand g g are placedtogetherin the overlapping manner diagrammatically indicated in Fig. 4:,surrounding one pipe end I). Four bolts are passed through the boltholes h. Thereupon the opposing member,also consisting of two dividedringsff and g g, is placed upon the opposing pipe end I) and strung ontothe bolts. Then, the packing-ring 61 being in place, the nuts are placedon the bolts and screwed up,drawing the opposed pairs of rings togetherand simultaneously centering the ends of the two pipes and pressing themstrongly together, so as to make a tight joint.

The advantages of this form of coupling are obvious over many forms nowin use. Its eX- treme simplicity and the ease with which it may be putin place or entirely removed from a pipe are remarkable.

Certain features of the invention may be utilized without others andwithout accomplishing the entire purpose of the invention. For example,if the opposing pairs of ringsf' are drawn very nearly together it ispossible, though less advantageous, to omit the rings g, for the tworings f if drawn very closely together and placed so as to break jointswill hold together on the flaring or flanged surfaces 0 without greattrouble; but I of course do not recommend such a procedure.

Having now described the form of the invention as I prefer to utilizeit, I claim as the characteristic novelties of my invention thefollowing:

1. In combination with two pipe ends having flared or enlarged taperedends, two overlying divided rings on each of the said ends, with theirdivisions breaking joints or overlapped, and resting against the flaredor tapered surface, and means for drawing the said rings together andthereby pressing the IOO breaking joints or overlapped, and restingpered surface, and means for drawing the against the flared or taperedsurface, and said rings together and thereby pressing the means fordrawing the said rings together and pipe ends together, substantially asset forth. thereby pressing the pipe ends together, sub- Signed this28th day of February, 1900, at -5 stantially as set forth 4 the city ofNiagara Falls, New York. I 3. In combination with two pipe ends hav- 1ing flared or flanged ends, two complete over- MAX MAURAN' lying dividedrings on each of the said ends, Witnesses: with their divisions breakingjoints or over- EUGENE R. WHITE, 10 lapped, and resting against theflared or ta- G. M. TUTTLE.

